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Property and Equipment
6 Months Ended
Jun. 30, 2014
Property, Plant and Equipment [Abstract]  
Property and Equipment
Property and Equipment
 
The net carrying value of property and equipment was as follows:
 
June 30, 2014
 
December 31, 2013
Furniture and fixtures
$
67,341

 
$
67,341

Equipment
2,562,887

 
2,547,686

Software
8,381,066

 
8,020,982

Leasehold improvements
66,903

 
66,903

Subtotal
11,078,197

 
10,702,912

Less: accumulated depreciation and amortization
(10,072,200
)
 
(9,514,346
)
Total
$
1,005,997

 
$
1,188,566



During the three and six months ended June 30, 2014, depreciation expense was $243,335 and $499,307, respectively. During the three and six months ended June 30, 2013, depreciation expense was $504,567 and $1,210,034, respectively.